<template>
  <div class="row">
    <div class="col-4 mb-4" v-for="column in list" :key="column.id">
      <div class="card h-100 shadow-sm">
        <div class="card-body text-center">
          <img class="w-25 my-3" :src="column.avatar" alt="" />
          <h5 class="card-title">{{ column.title }}</h5>
          <p class="card-text">{{ column.description }}</p>
          <a href="#">进入专栏</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script lang="ts">
import { defineComponent, PropType } from 'vue'
export interface ColumnListProps {
  id: number;
  title: string;
  avatar: string;
  description: string;
}
export default defineComponent({
  name: 'ColumnList',
  props: {
    list: {
      // 如果要把构造函数断言为一个类型，需要借助 PropType
      type: Array as PropType<Array<ColumnListProps>>,
      required: true
    }
  },
  setup () {
    return {}
  }
})
</script>

<style scoped></style>
